Sexual images that are illegal would still be illegal in VR?
There's some evidence that while short-term(a few years) monogamy is natural , long-term one isn't . this book talks about it:
http://www.amazon.com/Sex-Dawn-Stray-Modern-Relationships-eb...
Illegal sexual imagery in VR is a thing. So long as it is digitally created, I have no reason to think that it carries with it the intrinsic moral wrongness of whatever the equivalent analog act would have. That said, there's a clear counter argument that providing that sort of material normalizes the behavior.
What I think will be more interesting is looking at the IP claims to come out of VR and teledildonics...being sued by a former lover for, say, continuing to hold onto and operate recordings of their performance.
It's all rather entertaining.
Now if only we could accept as a society that sex is natural, normal, and healthy, and that it is a standard part of healthy functioning relationships.
Porn wouldn't be half as popular, I believe, were creep-shaming and the entire romantic-industrial complex not so pervasive.